|This article is about a/an kaijin in Kamen Rider Decade.|
Ryo Itoya (糸矢 僚 Itoya Ryō) is a strange young man who is in actuality the Spider Fangire (スパイダーファンガイア Supaidā Fangaia). He is the first Fangire that Tsukasa and Natsumi encounter, and reveals to them the truce that exists between Humans and Fangires while posing for a photo in the Hikari Studio.
- Height: 210cm
- Weight: 180kg